Automatic stop for phonograph-records.



S. J. CRAFTS.

AUTOMATIC STOP FOB. PHONOGRAPH RECORDS.

APPLICATION FILED JULY 15, 1914.

1,129,647, Patented Feb. 23, 1915.

SIGEL J. CRAFTS, OF CHAGRIN' FALLS, OHIO.

AUTOMATIC STOP FOR PHONOGRAPH-RECORDS.

Specification of Letters Patent.

Patented Feb. 23, 1915.

Application filed July 15, 1914. Serial No. 851,176.

'To all whom it may concern:

Be it known that I, SIGEL-J. CRAFTS, a citizen of the United States, residing at Chagrin Falls, in the county of Cuyahoga and State of Ohio, have invented new and useful Improvements in Automatic Stops for Phonograph-Records, of which the following is a specification.

An object of the inventionis to provide a simple and effective stop for use on talking machines and which will limit the rotation of the usual phonograph record so that when the end of the record is reached the machine will be automatically brought to a standstill and result in the discontinuance of the rotation of the record.

The invention is particularly adaptable for use on the flat or disk-like records now generally used on phonograph machines such as the Victor or Columbia types and wherein it is desired to stop the rotation of the record and the advancement of the needle over the record when the end of the record is reached so that the needle will discontinue its advancement over the record and the rotation of the record will be discontinued when the needle reaches one of the innermost grooves of the record.

In the further disclosure of the invention reference is to be had to the accompanying drawings, constituting a part of this specification, in which similar characters of ref erence denote corresponding parts in all the views, and in which:

Figure 1 is a perspective view of the stopping device, showing the same applied; Fig. 2 is a horizontal sectional view taken through the device as applied; Fig. 3 is a. vertical sectional view taken substantially on the line in Fig. 2.

Referring more particularly to the views, I disclose a portion of a phonograph 10 having the usual revoluble table 11 on which is disposed a record 12 of the flat or disk type, the usual tone-arm 13 being arranged to swing over the record 12 and carrying the usual rcproducer 14 having a needle 15 thereon and which operates in grooves in the record 12.

The stop consists, more particularly, of a shank 16 carrying a coupling or attaching member 17 consisting of a substantially U- shnped body 18 which is rigidly secured to the upper end of the shank 16-and on which is arranged to swing a similar U-shaped body 29, the said bodies 18 and 19 being each The bracket has a substantially circular head 25 provided with an opening 26 and in which is arranged to slide a rod or member 27 capable of being adjusted on the head and secured in a rigid position by a thumb screw 28 on the head and which has its inner end adapted for engagement with the rod. The forward end of the rod carries a tip 29 having a beveled surface 30,

said tip being formed of fiber, rubber or,

some other similar material. Now referring to the views, it will be seen that the rod or member 27 extends at right angles to the depending shank 16 and is offset from the vertical plane of the shank and it will also be seen that the rod or member can be adjusted upon the head 25 so that the tip 29 can be moved toward or away from the peripheral edge 31 of the table 11. Therefore, in the use of the device described after the record has been placed upon the table, the tone arm is swung to a position where the needle and reproducer will lie in the innermost groove of the record and then upon operating the screw 28 the rod or member 27 can be loosened on the head so that the rod can be moved forwardly to engage the peripheral edge 31 of the table. The thumb screw is now tightened up to secure the rod in this rigid position, and when this has been accomplished the tone arm is swung to a point which will cause the needle on the reproducer to lie in the first or initial groove of the record and adjacent its periphery. The phonographfis now operated in the usual manner and it will be clearly seen that when the end of the record is reached the tone arm will again be in a position where it will lie in a position almost radial to the record itself and thus at the moment the end of the record is reached the tip 29 of the rod or member 27 will engage the peripheral edge 31 of the table and being thus brought into frictional engagement therewith will cause the rotation of the table to be discontinued, thus also resulting in the discontinuance of the rotation of the record. It will, therefore, be seen that at the moment the needle reaches the innermost or last groove of the record, the table will be brought to astop by the frictional engagement of the beveled surface 30 of the rod or member 27 with the peripheral edge 31 of the table.

With a device of the character described it will be apparent that the device can be readily adjusted for each record that is played regardless of the length or the size of the record and that the device is as applicable to ten inch records as it is to twelve mch or any other size records, and can be used on various kinds of maclunes which provide a swinging tone arm or similar member carrying the usual reproducer on whlch is arranged a needle or sapphire.

depending therefrom, a bracket adjustably supported on the'shank and provided with an opening, a rod slidable in the opening of the bracket, and a screw for securing the rod 111 an ad uSted position on the bracket,

said'rod having its engaging end beveled. I

In testimony whereof I aiiix my signa-] ture in presence of two witnesses.

Witnesses Li. B. Camus,

U. B. MACK.

SIGEL .1. oRAFTs. 7 

